WRITER Anna Graham Hunter, who was an intern on Dustin Hoffman's 1985 TV movie Death of a Salesman, says the Oscar-winner sexually harassed her.

Hunter told The Hollywood Reporter that the harassment from the actor, who is now 80, was constant.

"He asked me to give him a foot massage my first day on set; I did," Hunter wrote.

"He was openly flirtatious, he grabbed my ass, he talked about sex to me and in front of me. One morning I went to his dressing room to take his breakfast order; he looked at me and grinned, taking his time. Then he said, 'I'll have a hard-boiled egg … and a soft-boiled clitoris.' His entourage burst out laughing. I left, speechless. Then I went to the bathroom and cried."

Hunter kept a diary on set and emailed her sister passages at the time.

"Today, when I was walking Dustin to his limo, he felt my ass four times," she wrote. "I hit him each time, hard, and told him he was a dirty old man."

Dustin Hoffman in Runaway Jury with Jeremy Piven, another actor who has been accused of sexual misconduct. Picture: Supplied

She claims she was told to put up with his behaviour by a supervisor and "sacrifice" some of her values for the sake of the production.

"At 49, I understand what Dustin Hoffman did as it fits into the larger pattern of what women experience in Hollywood and everywhere," she wrote. "He was a predator, I was a child, and this was sexual harassment. As to how it fits into my own pattern, I imagine I'll be figuring that out for years to come."

Hoffman has issued an apology.

"I have the utmost respect for women and feel terrible that anything I might have done could have put her in an uncomfortable situation. I am sorry. It is not reflective of who I am."

Hoffman has been criticised in the past for his treatment towards women.

Meryl Streep, his co-star on Kramer vs Kramer, has never worked with him again after he slapped her in a dramatic scene, he says, to improve her performance, while taunting her about the death of her boyfriend.

"I was getting divorced, I'd been partying with drugs and it depleted me in every way," Hoffman said of his behaviour at the time.

The claims against Hoffman come as Hollywood heavyweights Harvey Weinstein, filmmaker James Toback, Kevin Spacey and Brett Ratner are all accused of sexual misconduct.

Meryl Streep has never worked with Dustin Hoffman again since the 1979 film Kramer vs Kramer. Picture: Supplied